Knowledge (XXG)

Talk:Carrier wave

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74: 53: 483: 462: 179: 158: 268: 22: 1475:, This is not exactly a neutrally worded, concise RfC. I don't see any discussion of the issue between you folks prior to this RfC. Perhaps you should have asked for a third opinion first? Or just...discussed it between the two of you on this page instead of using edit summaries? If he was being dismissive and patronizing...you should have brought that up to him or just brought the issue to 84: 1288: 1315: 1039:"Frequency modulation (FM) and amplitude modulation (AM) are commonly used methods to modulate the carrier. In the case of single-sideband modulation (SSB) the carrier is suppressed (and in some forms of SSB eliminated). The carrier must be reintroduced at the receiver by a beat frequency oscillator (BFO)." 1527:
The topic sentence of the article is "In telecommunications, a carrier wave, carrier signal, or just carrier, is a waveform (usually sinusoidal) that is modulated (modified) with an information bearing signal for the purpose of conveying information." Nothing about music production there; that is so
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A sinusoid packs the maximum possible amount of RF energy in the smallest possible amount of spectrum. If the carrier is not sinusoidal, the modulated signal will take up more bandwidth than generally desired, leading to inefficient use of available spectrum under normal working rules for spectrum
1479:. As is, this RfC provides no summary of the issue, no discussion of relevant sources, or frankly any other possible background info. I suggest you withdraw this RfC, talk it out with wtshymanski, and go from there. Ping me if you would like me to help moderate a discussion. 1070:
Why is the carrier wave usually sinusoidal? There should be some discussion of alternative waveforms, and why they were chosen. Is there some history to this? At the very least, a discussion of why sinusoidal waveforms came to be the industrial norm.
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I'm convinced by the argument above, and have moved it back. In the context of RF transmission, "carrier signal" is also to some extent justifiable on those grounds (the "signal" in this case is "this channel is taken") but I take Andy Dingley's point. --
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Does the need to use BFO only apply to SSB or to all FM and AM? I'm gonna go look for that info elsewhere now, but it'd be nice if it was clear here. I'd come back and correct this P myself, but I'm so new to this topic, I wouldn't trust myself.
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it is modulated can it then be said to become a "signal". The purpose of this article is to distinguish this unmodulated carrier from the later forms, and so this distinction is significant and worth emphasising through the article name.
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You're right CaptiainEek. You may strike out that last sentence about their tone and all. But there is already a place for discussion here. Perhaps we should follow through with the RfC then.
1614:. The main use of carriers is in telecommuncations, music synthesis is a small specialized application, so my feeling is it doesn't merit a separate section, just a few sentences. -- 140: 1121:
Firstly, the difficulty of transmitting electromagnetic radiation at baseband, and secondly, the fact that even if you could do so usefully, everyone's signals would overlap. --
1660: 130: 1025:, articles are to avoid containing information in list or bulleted format (or keep such lists to a minimum). This article is almost exclusively in list format. Regards, -- 1363:
thought the application of carrier waves in music production doesn't have the requisite relevance for inclusion in this article, so he removed content covering this twice (
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BTW, I'm also curious about the entropy-information properties of the these waves and what they carry. Would it make sense to add anything about that?
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The dismissive and patronizing tone of their edit summary put me off from communicating directly with them, so I've opted for an RfC instead.
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technology, organizations, and activities. If you would like to participate, you can edit the article attached to this page, or visit the
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I agree there needs to be some work done on this article. Specifically what problem is using a Carrier Wave trying to solve?
298: 280: 33: 202: 163: 1430:- per the references above (and from watching my 1337 musician friends do it, and from doing it on synthesizers myself...) 1087:
use, where different RF emissions are not allowed to share the same band. However, your question is not unreasonable: see
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in 2013. I can't find any discussion about this move but I agree with it. Do you have any evidence for your
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https://web.archive.org/web/20080414012934/http://www.utexas.edu:80/research/cemd/nim/Agif/CarrWave.html
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on Knowledge (XXG). If you would like to participate, please visit the project page, where you can join
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on Knowledge (XXG). If you would like to participate, please visit the project page, where you can join
1244:. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit 1111: 874: 482: 461: 1607: 1580:...a waveform (usually sinusoidal) that is modulated (modified) with an information bearing signal... 1278: 966: 950: 808: 790: 768: 722: 364: 1049: 315: 1216: 1126: 1096: 1053: 938: 922: 944: 1630: 1551: 1514: 1497: 1472: 1458: 1376: 1319: 902: 1301: 858: 1205: 1157: 625: 102: 1257: 357: 1575: 1555: 1529: 1518: 1462: 1380: 1360: 880: 828: 742: 334: 1476: 1308: 1022: 890: 1480: 650: 421: 1578:. The same phrase, "carrier wave" is used in music synthesis, with the same meaning: " 1615: 1501: 1438: 1419: 1212: 1190: 1171: 1122: 1092: 267: 178: 157: 1307:
If you found an error with any archives or the URLs themselves, you can fix them with
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1603: 403: 906: 1398:- Carrier modulation systems are clearly used in electronic music synthesis. 976: 896: 598: 488: 184: 79: 1432: 1186: 615: 337: 1151:
The carrier wave, of itself, is not a signal and contains no information.
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Yes, in a limited form as described by Chetvorno. A small mention. <
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I'll abstain from voting for now. Maybe someone else can enlighten me,
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An editor has reviewed this edit and fixed any errors that were found.
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The source citing that sentence does not say telecommunications.
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When you have finished reviewing my changes, please set the
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Should content on carriers in music production be included?
1582:". The main process used in music synthesis, described in 1258:
http://www.utexas.edu/research/cemd/nim/Agif/CarrWave.html
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for additional information. I made the following changes:
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far afield that really wants to be a separate topic. --
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